package com.item.Controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import com.item.Models.User;
import com.item.Util.CommonResult;
import com.item.filter.CustomerBlockHandler;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;


@RestController
public class RateLimitController {

    @GetMapping("/byResource")
    @SentinelResource(value = "byResource", blockHandler = "handleException")
    public CommonResult byResource() {
        return new CommonResult(200, "按资源名称限流测试OK", new User());
    }

    public CommonResult handleException(BlockException exception) {
        return new CommonResult(444, exception.getClass().getCanonicalName() + "\t  服务不可用");
    }

    @GetMapping("/rateLimit/byUrl")
    @SentinelResource(value = "byUrl")
    public CommonResult byUrl() {
        return new CommonResult(200, "按url限流测试OK", new User());
    }

    /**
     *  自定义通用的限流处理逻辑，
     blockHandlerClass = CustomerBlockHandler.class
     blockHandler = handleException2
     上述配置：找CustomerBlockHandler类里的handleException2方法进行兜底处理
     */
    /**
     * 自定义通用的限流处理逻辑
     */
    @GetMapping("/rateLimit/customerBlockHandler")
    @SentinelResource(value = "customerBlockHandler",
            blockHandlerClass = CustomerBlockHandler.class, blockHandler = "handleException2")
    public CommonResult customerBlockHandler() {
        return new CommonResult(200, "按客户自定义限流处理逻辑");
    }
}